Bostik All Weather Brush Bituminous Waterproofer – 5L
Heavy-Duty, Solvent-Based Waterproofing for Roofs
Bostik All Weather Brush is a premium-grade, solvent-based bituminous waterproofer designed for application on all common roofing materials. It dries to form a tough, black protective coating that provides immediate resistance to water ingress. This formulation is ideal for use in conditions where rain or frost prevents the use of water-based emulsions.
Key Features & Benefits
- Instant Waterproofing: Provides protection upon application—ideal for emergency or cold-weather work
- Compatible with Most Roof Types: Apply to mastic asphalt, roofing felt, slates, lead, zinc, copper, fibre cement, and corrugated iron
- Brush-On Consistency: Heavy-grade compound allows easy, controlled application
- Weather Resistant: Withstands rain, frost, and UV exposure for long-lasting performance
- Forms Tough Black Film: Dries to a durable, water-resistant finish
Technical Specifications
- Colour: Black
- Form: Paste / thick liquid
- Specific Gravity: Approx. 1.0
- Composition: Filled bitumen solution with organic fibre content
- Coverage: Approx. 0.7 L/m² per coat; two coats for optimal results
- Drying Time: Typically 24 hours (depending on conditions)
- Application Temperature: +5 °C to +35 °C
- Service Temperature: –10 °C to +85 °C
- Shelf Life: Up to 24 months unopened
Application Instructions
- Ensure the surface is sound, dry, and free from rust, dust, and contaminants
- Prime porous or dusty surfaces with Bostik Penetration Primer
- Stir well before use. Apply with a brush at 0.7 L/m² per coat, in at least two coats at right angles
- Allow each coat to dry fully before recoating
- For reinforcement, embed a fibre mesh between coats if required
- Clean tools with white spirit immediately after use
Safety & Storage
- Store in a cool, dry place between +5 °C and +35 °C
- Keep upright and tightly sealed when not in use
- Wear protective gloves, clothing, and eye protection during use
- Refer to the product SDS for full handling and first aid information
Bostik All Weather Brush is the go-to solution for reliable bituminous roof protection where traditional emulsions are unsuitable. Its instant waterproofing action and robust finish make it ideal for professional roofing repair and protection year-round.
Delivery
Fast & Free Delivery on Eligible Items.
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Returns
Something not quite right? You have 14 days from the day you receive it, to send something back.
Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken. Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.
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